KVM: MMU: Merge shadow level check in FNAME(fetch)
Remove the redundant level check when fetching
shadow pte for present & non-present spte.
Signed-off-by: Yaozu (Eddie) Dong <eddie.dong@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
diff --git a/arch/x86/kvm/paging_tmpl.h b/arch/x86/kvm/paging_tmpl.h
index 3499205..03ba860 100644
--- a/arch/x86/kvm/paging_tmpl.h
+++ b/arch/x86/kvm/paging_tmpl.h
@@ -300,16 +300,13 @@
bool new_page = 0;
shadow_ent = ((u64 *)__va(shadow_addr)) + index;
+ if (level == PT_PAGE_TABLE_LEVEL)
+ break;
if (is_shadow_present_pte(*shadow_ent)) {
- if (level == PT_PAGE_TABLE_LEVEL)
- break;
shadow_addr = *shadow_ent & PT64_BASE_ADDR_MASK;
continue;
}
- if (level == PT_PAGE_TABLE_LEVEL)
- break;
-
if (level - 1 == PT_PAGE_TABLE_LEVEL
&& walker->level == PT_DIRECTORY_LEVEL) {
metaphysical = 1;